5. Which element, when combined with fluorine, will form an ionic compound? *

a. oxygen

b. bromine

c. potassium

d. nitrogen

6. What is the correct formula for sodium sulfate? *

a. NaHSO3

b. NaHSO4

c. Na2SO3

d. Na2SO4

Strong root systems and long flexable stems allow plants to survive on the strong currents of which ecosystem? A) Ponds B) Rivers C) Lakes D) The open ocean

What zone does Earth exist in that potentially allows for life on our planet? Question 2 options: A: Red Zone B: Green Zone C: Goldilocks Zone (Habitable Zone) D: Danger Zone

Examine the following false statement. Acids that have a low pH are strong acids while acids that have a high pH are weak acids.

What types of bonds or intermolecular forces need to be disrupted between solute molecules? What types of bonds or intermolecular forces need to be disrupted between solvent molecules?

Which quantity repsresents the number of protons in an atom

Predict the product for PtCl4 + F2

Calculate the formula mass of ethanol, c2h5oh. express your answer to three significant figures and include the appropriate units.

What are the four classifications of matter? of those four, which two are pure substances?

Which relationship or statement best describes delta s for the following reaction: 2H2S (g) + 3O2 (g) - -> 2H2O (g) a) Delta S = 0 b) Delta S < 0 c) Delta S> 0 d) Delta S = Delta H |T e) More information is needed to make a reasonable prediction.

Which of the following subatomic particles are found outside of the nucleus?